diff --git a/openflow_input/bsn_tlv b/openflow_input/bsn_tlv
index cac69fc..2a83a43 100644
--- a/openflow_input/bsn_tlv
+++ b/openflow_input/bsn_tlv
@@ -541,3 +541,8 @@
     uint16_t length;
     uint16_t value;
 };
+
+struct of_bsn_tlv_negate : of_bsn_tlv {
+    uint16_t type == 83;
+    uint16_t length;
+};